Valve



Mar. 27, 1923,

W. H. DENT VALVE Filed Dec. 1, 1920.

. Dm my Hm M Q Q "m l-Il \N w mv l nl.. h\ v m m N\ Q Q. 1% N MN NM N Q 3. v mw\ m MN Q Q Q E v A TTORNEK Patented Mar. 27, 1923.

WILLIAM H. DENT, 'OF-IBERGENFIELD, NEwJERsEY, AssIGNoa'ro ia-E ANTHONY PATEN i rtl'ciEfQ COMPANY, orno'ne ISLAND CITY, new vonx a ooRPonATIon'or NEW 03 VALVE.

. Application filed December 1, 1920, Serial mews.

- To all whom z't may concern;

Be it known that I, \VILLIA H. citizen of the United States,'.and a resident of Bergenfield, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Valves, of which the following is a specification. I

*Thisinvention relates to new and useful improvements in valvesand particularly in valves,.the construction of which and process of fitting, are settorth in Letters Patent Nos, 1,006,852issued October 24, 1911, to Edgar.

A- Kelsey.

-It has beenfound that valves made tight by reversely producing the minute imperfections: in the seating surfaces of valves and their seats,'are of great commercial importance because oftheir simplicity of design, reliability of service, and high operating efficiency. Byreterring to the specification of the above mentioned Letters Patent, it

will be seen that such valves are set in position on seats of valve bodies and are pro vided with means to guide them to this exact position at the end of each operating cycle, and are then pressed into thisposition so that every projection: in the seating face of valves makes a corresponding depression in the valve seats of valve bodies, and vice versa. I All manufacturing processes involved in so doing are elementary. The elimination of valve grinding, permits of a high rate of production and consequent low cost. A fluid tight joint is obtained with astonishin ease and regularity.

he efficiency of these valves depends chiefly upon the construction employedto guide the discs to the exact position'on seats into which they have previously been pressed. The minute projections musttall into corresponding depressions at each seating. The slightest turning or shifting out of this original inpressed position must be avoided. If this is permitted tooccur, both projections and depressions become obstacles which prevent'seating and cause leakage.

It is the particular purpose of this invention, to provide means for accurately guiding valve discs into fitted position in a simple and efficient manner and to embody the same in a valve of sturdyand reliable construction.

The invention is illustrated in the accompanying drawin inwhich Fig. 11s an el evation of the valve Y 2 is a longitudinal sectional view of.

the valve; 7

3. is .a' I V plane of: line 3- 3 infiFig. 2; and

Fig. 1 is a perspective view of the va lve member proper.

cross, sectional view along the" i Like numbers or reference 7 denote similar parts throughout the drawings and the following specification. g 10 is a valve casing having an end threaded exteriorly at 11; 12 is a' center section of casing 10, polygonal in.shape, to facilitate grippingthe casing 10 to screw its threaded end 11 into a desired place of application. Casing. 10 is tapped interiorly at one end at 13 to receive-an outlet member 14. '15 is. a central bore through casing 10, below thethreaded part 18 and concentricj'therewith; The lower e'nd ofbore 15 isfreduced to an inlet passage 16. 17' is avalve seat in the casing 10 Y Y 18 isa valve, its lower'taperingportion 19 adapted to seat against valve seat 17 2O iswa part ofthe valve, somewhatlarger than 7 the tapered portion "19, adapted to slide within bore 15, part 20.being polygonal in cross section, as plainly shown in Fig. 4. 21 is an oblong projection above 20. Parts 19, 20 and 21 are centrally disposed to each other, i. e., arefin axial alignment.

Outlet member 14 is provided with a hexagonal center section 22 to enable the same to be screwed into casing 10. 23 is an extension of outlet member 14 adapted to fit within a suitable flexible pipe. 24c'is a central bore through outlet member 14, and

25 is a slot through the inner threaded end I of the outlet member, to slidably receive projection 21 of-the valve 18.

The process of assembling the valve is as follows: The valve 18 is placed into the 'casing 10' and the outlet member 1 1 screwed ,The slot of outlet member 14 is milled accurately to fit projection 21 and inasmuch as the guide projection or bearing within this slot and the bearing part 20 above the tapered portion of the valve is greater in dimension than the largest diameter of said tapered part, of the valve proper, the small variations met with in machine operations produce practically no effect at the valve seat which is considerably smaller in diameter.

In the drawings has been illustrated the application of the principles of the invention to a valve used as check valve of a tire pump. It is obvious that the construction may be varied to suit many other purposes. and it should be understood that various changes of form, proportion and minor details may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as defined in the appended claims.

What I claim as new, is:

1. In a device of the character described, a valve casing, a valve and a valve seat, said valve comprising a seating face, a hearing part engaging the casing and larger in diameter than the seating face, and means for guiding the valve to seat in the same position in which it was fitted to its seat.

2. A valve consisting of a valve casing said outlet member whereby the valve is accurately guided into a fitted position.

A valve comprising a valve casing having a valve seat, a valve'having a conical seating face, a bearing surface engaging the casing, polygonal in section and larger in diameter than the valve seat, and a projection of rectangular cross section for the purpose of guiding the valve to seat in the same position in which it was fitted to its seat.

i. In a valve, a valve casing and an outlet member, a valve seat,'a valve having a conical seating face, anda bearing surface engaging the casing polygonal in section and larger in diameter than the valve seat, and having a projection of rectangular cross section, the said outlet member having an open slot through its inner end for the reception of the said projection of the valve to guide the same into a fitted position with its seat.

In testimony whereof I have hereunto set my hand and seal in presence of two subscribing witnesses.

VVILLIAM H. DENT.

vl itnesses ALBERT W. MORSE, MABEL CHURCHILL. 

